MICROANATOMY

Detailed explanation-1: -Oxygen and carbon dioxide gases are exchanged through a network of tubes called tracheae. Instead of nostrils, insects breathe through openings in the thorax and abdomen called spiracles. Insects that are diapausing or non-mobile have low metabolic rates and need to take in less oxygen.

Detailed explanation-2: -Air enters the respiratory systems of insects through a series of external openings called spiracles. These external openings, which act as muscular valves in some insects, lead to the internal respiratory system, a densely networked array of tubes called tracheae.

Detailed explanation-3: -Spiracles. Spiracles are the openings of the tracheal system on the integument of the insect. Some apterygote and larval insects lack valves in their spiracles and therefore have trachea that are always open to the environment, although these are often covered with sieve-like plates.

Detailed explanation-4: -Spiracles in Insects Insects such as grasshoppers, cockroaches, houseflies, and mosquitoes breathe through the tracheal system. A network of tubes that make up the whole body of an insect. This trachea opens outward through tiny holes called the spiracles on either side of a part of the body.

Detailed explanation-5: -Spiracles are respiratory openings found on the thorax and abdomen of insects. The spiracles are connected to trachea-tubes within the insect’s body. Air enters the trachea via the spiracles and the oxygen then diffuses into the insect’s body.